Environment Sri Lanka > Biodiversity


Picture galleries of Fauna and Floraa and Flora
  Birds of Sri Lanka                                        
Wild Fauna and Flora


Threatened spcies and Flora
  Threatened Plants of Sri Lanka                    
Threatened endemic amphibians of Sri Lanka


Species Diversity d Flora
  Checklist of Mammals of Sri Lanka                                 
Endemic Birds
Bird information from Sri Lankan Birder web site


Sinharaja World Heritage Site and Flora
  Sinharaja Forest- General Information              
Sinharaja Trail Map


New species added to Sri Lankan Biodiversity (2005)and Flora
  43 new species of vertebrates, 1 genus and 1 species of shrimp, 14 new species of freshwater crabs and five mosses were newly discovered from Sri Lanka


Ecosystems of Sri Lankand Flora
  Ecosystem Diversity

Biological diversity of Sri Lanka

Sri Lanka is an island, 65,610 km2 in area situated close to the Southeast corner of the peninsula of India. Despite its relatively small size, Sri Lanka possesses a high level of bioddiversity. A nortworthy feature of Sri Lanka's biodiversity is the remarkable high proportion of endemic species among its flora and fauna: 23% of the flowering plants and 16% of the mammals in the island are endemic. Sri Lanka has a wide range of topographic and climatic variation and this contributes to the special features of its biodiversity.

Flora - Number of species described to date in Sri Lanka

Group Number of described species Percentage endemism
Algae 866 NA
Fungi 1,920 NA
Lichens 110 35
Mosses 575 NA
Liverwoths 190 NA
Ferns and Fern allies 314 18
Gymnosperms 1 0
Angiosperms (Flowering plants) 3,350 23

Fauna - Number of species described to date in Sri Lanka

Group Number of described species Percentage endemism
Protista  (One celled animals) 40+ NA
Rotifera 140+ NA
Anthozoa (Corals) 171 NA
Annelida (Earthworms and Leeches) 18 NA
Monogenea (Flatworms) 23+ NA
Crustacea  (Prawns, crabs and allies) 400 NA
Mollusca (snails and allies) 325 NA
Mayflies 18 100
Mosquitoes 139 NA
Beetles 540 23
Butterflies 242+ 6
Arachnida (Spiders) 400+ NA
Pisces - Coastal fish 400+ NA
Pisces - Freshwater fish 61 39
Amphibia (Frogs and Toads) 48 52
Reptilia (Reptiles) 162 43
Aves (Birds) 441 5
Mammalia (Mammals) 90 16

Sri Lanka: One of 25 World's Biodiversity Hot Spots

Sri Lanka has been identified by the environment activist group Conservation International (CI) as one of 25 biodiversity hot spots in the world.

These hot spots could have maximum benefit by preservation efforts, the magazine said in a cover story titled "Heroes for the Planet: Earth Angles". The U.S.-based CI said that together with Western India, Sri Lanka, the island in the Indian ocean, accounts for 2,180 plant species that are unique to each hot spot.

Sri Lanka's tropical rain forest ecosystem is considered as an area which is disturbed by human activity, but still exceptionally rich in animal and plant species found nowhere else.

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Forestry and Environmental Science Society of Univesity of Sri Jayewardenepura, Nugegoda, Sri Lanka and
Young Biolgists' Association, National Meuseum of the Naural History, Sir Marcus Fernando Mawatha, Colombo 7, Sri Lanka.
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